Determine whether the statement is true or false Justify your answer 1 If 2 , then 2 0 2 Cot x sin2 x cos x sin x 3 4 sin ( x) cos ( x) 2 sin 2x 4 4 sin 45o cos 15o 1 3

Question: Determine whether the statement is true or false. Justify your answer. 1. If / 2 < < , then / 2 <

Determine whether the statement is true or false. Justify your answer.
1. If π / 2 < θ < π, then θ / 2 < 0.
2. Cot x sin2 x = cos x sin x
3. 4 sin (- x) cos (- x) = - 2 sin 2x
4. 4 sin 45o cos 15o = 1 + √3

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